depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2013-12-31	Dynamic attrs	Shea Levy	6	-23/+256
	This adds new syntax for attribute names: * attrs."${name}" => getAttr name attrs * attrs ? "${name}" => isAttrs attrs && hasAttr attrs name * attrs."${name}" or def => if attrs ? "${name}" then attrs."${name}" else def * { "${name}" = value; } => listToAttrs [{ inherit name value; }] Of course, it's a bit more complicated than that. The attribute chains can be arbitrarily long and contain combinations of static and dynamic parts (e.g. attrs."${foo}".bar."${baz}" or qux), which is relatively straightforward for the getAttrs/hasAttrs cases but is more complex for the listToAttrs case due to rules about duplicate attribute definitions. For attribute sets with dynamic attribute names, duplicate static attributes are detected at parse time while duplicate dynamic attributes are detected when the attribute set is forced. So, for example, { a = null; a.b = null; "${"c"}" = true; } will be a parse-time error, while { a = {}; "${"a"}".b = null; c = true; } will be an eval-time error (technically that case could theoretically be detected at parse time, but the general case would require full evaluation). Moreover, duplicate dynamic attributes are not allowed even in cases where they would be with static attributes ({ a.b.d = true; a.b.c = false; } is legal, but { a."${"b"}".d = true; a."${"b"}".c = false; } is not). This restriction might be relaxed in the future in cases where the static variant would not be an error, but it is not obvious that that is desirable. Finally, recursive attribute sets with dynamic attributes have the static attributes in scope but not the dynamic ones. So rec { a = true; "${"b"}" = a; } is equivalent to { a = true; b = true; } but rec { "${"a"}" = true; b = a; } would be an error or use a from the surrounding scope if it exists. Note that the getAttr, getAttr or default, and hasAttr are all implemented purely in the parser as syntactic sugar, while attribute sets with dynamic attribute names required changes to the AST to be implemented cleanly. This is an alternative solution to and closes #167 Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-31	Add the ExprBuiltin Expr type to the AST	Shea Levy	6	-9/+40
	Certain desugaring schemes may require the parser to use some builtin function to do some of the work (e.g. currently `throw` is used to lazily cause an error if a `<>`-style path is not in the search path) Unfortunately, these names are not reserved keywords, so an expression that uses such a syntactic sugar will not see the expected behavior (see tests/lang/eval-okay-redefine-builtin.nix for an example). This adds the ExprBuiltin AST type, which when evaluated uses the value from the rootmost variable scope (which of course is initialized internally and can't shadow any of the builtins). Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-30	nix-shell --pure: Don't clear IN_NIX_SHELL	Shea Levy	1	-1/+1
	Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-20	Revert "Scan /proc/<pid>/cmdline for GC roots"	Eelco Dolstra	1	-8/+4
	This reverts commit 194e3374b89b8b2dec6296923877304bdb5c6ae2. Checking the command line for GC roots means that $ nix-store --delete $path will fail because $path is now a root because it's mentioned on the command line.
2013-12-20	Doh	Eelco Dolstra	1	-1/+1

2013-12-20	perl: Call loadConfFile() in doInit to avoid screwing sqlite journal mode.	Petr Rockai	1	-0/+2
	If the database is opened through perl bindings (and even though nix.conf has use-sqlite-wal set to false), the database is automatically converted into WAL mode. This makes the next nix process to access the database convert it back to "truncate". If the database is still open at the time in wal mode by the perl program, this fails and crashes the nix doing the wal -> truncate conversion.
2013-12-20	nix-env --set-flag: Barf if a selector doesn't match any installed package	Eelco Dolstra	1	-5/+13
	Fixes #184.
2013-12-20	Scan /proc/<pid>/cmdline for GC roots	Eelco Dolstra	1	-4/+8

2013-12-20	nix-shell: Don't warn about the lack of a GC root	Eelco Dolstra	2	-1/+6

2013-12-20	nix-shell: Set $IN_NIX_SHELL before evaluation	Eelco Dolstra	1	-2/+2
	This has some hacky applications.
2013-12-20	nix-shell: Handle --option correctly	Eelco Dolstra	2	-3/+7
	Fixes #181.
2013-12-17	nix-shell --pure: Keep $TERM	Eelco Dolstra	1	-1/+1

2013-12-10	Bump language version for new storePath feature	Shea Levy	1	-1/+1
	This will allow e.g. channel expressions to use builtins.storePath IFF it is safe to do so without knowing if the path is valid yet. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-10	builtins.storePath: Try to substitute the path if it is not yet valid	Shea Levy	1	-2/+2
	Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-10	Garbage collector: Release locks on temporary root files	Eelco Dolstra	1	-0/+1
	This allows processes waiting for such locks to proceed during the trash deletion phase of the garbage collector.
2013-12-05	Print a trace message if a build fails due to the platform being unknown	Eelco Dolstra	1	-1/+4

2013-11-22	Include <cstring> for memset	Eelco Dolstra	1	-0/+1
	This should fix building on Illumos.
2013-11-19	Bump version number	Eelco Dolstra	1	-1/+1

2013-11-19	Check meta values and warn about bad ones	Eelco Dolstra	4	-26/+54

2013-11-19	Generalise meta attributes	Eelco Dolstra	5	-204/+204

2013-11-19	Shorter error message	Eelco Dolstra	1	-2/+1

2013-11-19	Drop support for user environment manifests in ATerm format	Eelco Dolstra	1	-112/+1

2013-11-19	nix-env -q: Add a --json flag	Eelco Dolstra	1	-8/+45

2013-11-19	Refactor JSON output	Eelco Dolstra	2	-13/+56

2013-11-19	Add a toJSON primop	Eelco Dolstra	10	-24/+179

2013-11-18	Add a primop unsafeGetAttrPos to return the position of an attribute	Eelco Dolstra	6	-6/+44

2013-11-18	Add a symbol __curPos that expands to the current source location	Eelco Dolstra	7	-2/+43
	I.e. an attribute set { file = <string>; line = <int>; column = <int>; }.
2013-11-18	Support quoted attribute names in -A	Eelco Dolstra	3	-14/+38
	This is requires if you have attribute names with dots in them. So you can now say: $ nix-instantiate '<nixos>' -A 'config.systemd.units."postgresql.service".text' --eval-only Fixes #151.
2013-11-14	Remove nix-setuid-helper	Eelco Dolstra	13	-526/+50
	AFAIK, nobody uses it, it's not maintained, and it has no tests.
2013-11-12	Make function calls show up in stack traces again	Eelco Dolstra	4	-26/+35
	Note that adding --show-trace prevents functions calls from being tail-recursive, so an expression that evaluates without --show-trace may fail with a stack overflow if --show-trace is given.
2013-11-12	Add a test to check that tail calls run in bounded stack space	Eelco Dolstra	2	-0/+4

2013-11-12	Make function calls tail-recursive	Eelco Dolstra	4	-40/+65

2013-11-12	Make ifs and asserts tail-recursive	Eelco Dolstra	2	-4/+11
	The local Value object prevented g++ from making a tail call. Not clear why. In any case, not using a temporary makes g++ do the tail call.
2013-11-12	Get rid of an intermediary on the stack	Eelco Dolstra	2	-13/+17

2013-10-28	Fix building without a garbage collector	Eelco Dolstra	1	-5/+5
	http://hydra.nixos.org/build/6695350
2013-10-28	Fix a segfault in genericClosure	Eelco Dolstra	1	-16/+25
	It kept temporary data in STL containers that were not scanned by Boehm GC, so Nix programs using genericClosure could randomly crash if the garbage collector kicked in at a bad time. Also make it a bit more efficient by copying points to values rather than values.
2013-10-28	Drop Cygwin and Solaris builds	Eelco Dolstra	1	-1/+1

2013-10-28	Update release notes, set version for 1.6.1 release	Eelco Dolstra	2	-2/+7

2013-10-28	Slightly optimize listToAttrs	Eelco Dolstra	3	-9/+10

2013-10-24	Undocument obsolete form of "let"	Eelco Dolstra	1	-8/+2

2013-10-24	Doc fix	Eelco Dolstra	1	-2/+2

2013-10-24	Fix segfault on Darwin	Eelco Dolstra	2	-0/+2
	Ever since SQLite in Nixpkgs was updated to 3.8.0.2, Nix has randomly segfaulted on Darwin: http://hydra.nixos.org/build/6175515 http://hydra.nixos.org/build/6611038 It turns out that this is because the binary cache substituter somehow ends up loading two versions of SQLite: the one in Nixpkgs and the other from /usr/lib/libsqlite3.dylib. It's not exactly clear why the latter is loaded, but it appears to be because WWW::Curl indirectly loads /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation, which in turn seems to load /usr/lib/libsqlite3.dylib. This leads to a segfault when Perl exits: #0 0x00000001010375f4 in sqlite3_finalize () #1 0x000000010125806e in sqlite_st_destroy () #2 0x000000010124bc30 in XS_DBD__SQLite__st_DESTROY () #3 0x00000001001c8155 in XS_DBI_dispatch () ... #14 0x0000000100023224 in perl_destruct () #15 0x0000000100000d6a in main () ... The workaround is to explicitly load DBD::SQLite before WWW::Curl.
2013-10-24	Rename "attribute sets" to "sets"	Eelco Dolstra	13	-160/+152
	We don't have any other kind of sets so calling them attribute sets is unnecessarily verbose.
2013-10-24	Manual: Fix broken URLs	Eelco Dolstra	2	-3/+3
	Fixes #172.
2013-10-24	Add rpm_fedora19i386 to the release-critical builds	Eelco Dolstra	1	-1/+1

2013-10-24	Remove unnecessary call to forceStringNoCtx	Eelco Dolstra	1	-1/+1

2013-10-24	Document typeOf	Eelco Dolstra	1	-0/+13

2013-10-24	Add a test of the type primops	Eelco Dolstra	2	-0/+24

2013-10-24	Add a typeOf primop	Eelco Dolstra	1	-3/+28
	We already have some primops for determining the type of a value, such as isString, but they're incomplete: for instance, there is no isPath. Rather than adding more isBla functions, the generic typeOf function returns a string representing the type of the argument (e.g. "int").
2013-10-24	Document NIX_SHOW_STATS and NIX_COUNT_CALLS	Eelco Dolstra	1	-0/+18